I guess its not surprising that the core counties in the Circle of Ignorance swung towards Walker.
Its a DKE term meaning:
The disgustingly Republican suburbs of Milwaukee, namely Waukesha, Washington, and Ozaukee counties. They have our undying enmity for voting almost three-to-one against such Democrats as Sen. John Kerry (in 2004), Sen. Russ Feingold (in 2010), and JoAnne Kloppenburg (in 2011).
I am familiar with DKE terminology, but that's rather stupid. Those counties form Half a Semicircle of Ignorance (if you're going to consider voting consistently, strongly Republican ignorance, but this is DKE so I'll take that for granted).
There really wasn't a strong swing in either direction for either candidate, which matches the meager 1% shift from 2010.
Your map seems to show the northern half of the state swung towards Walker (except for the Lake Superior coast, which had no particular swing), while the more densely populated southern half didn't really swing at all. So there seems to have been a noticeable, but weak, swing for Walker.
